Improvement in nozzle and cap for oil-cans



. paratively expensive, because of the ve rycostly pro- .sueh process.' In the second place they are easily in- ;jured, and soon`rendered useless.

etu (ttt-it.

termin)V ouvrier., or

BROOKLYN, 4NEW YORK.

teem Permit. 104,430, ma .Tune 21,1870.

IMPROVEMENT IN Nozznn AND CAP FOR OIL-CANS."

'.l'.'he Schedule referred to in these Letters Patent and making part of the same I,- EDWARD T. COVELL, of Brooklyn, in the county of Kings and State` of New York, have invented a new and improved Nozle and Cap for Oil-GansI and other vesscls,|of which Ithe following is a specification.

Myinvention relates to the manufacture of nozzlesand screw-caps, to be applied to oil-cans and other vessels, by stamping u'psheet-iron, either plain, tinned, or galvanized,'into the proper form therefor, and of such thickness as will admit ofthe subsequent formation of a screw-thread thereon.

`Heretofore the nozzles and; caps sold and used in the trade have been made either of comparativelysoft metal, or else of very thin metal, by spinning them up in a lathe, the necessary screwfthreads being spun over a threaded chuck,.swan ed, or otherwise stamped thereon or therein.' r

"Snell nozzles and `caps are, in the first place, comcess required in their manufacture, as Well as" from the qualit-y and description of the materiabrequired in 'Ihe object of my invention is to produce, by a new process ofmanufacture, as applied to such articles, nozzles and caps, which may not only be sold much cheaper than any heretofore used, from the ease with which they may be produced, and the comparative cheapnessof the material which may be employed in the process, but which shall also .be far more useful because of their greater stiiness, strength, and durability, and because of the greater facility with which they may be. secured] upon metallic vessels. i

Figure 1`is an' elevation in perspective, and

.Figure 2, a central vertical section of my improved nozzle and cap.

I manufacture these nozzles and caps by placing strips of sheet-iron (by preference tinned,but which `may be usedV plain or galvanized,) between suitable dieshin a powerful press, and then stamping them'npV at one movement of the machine. each into the proper form required for use.

Where the strips of metal are eut-of an exact width` wherev hundreds only can be made by the processes heretofore employed.

A concentricscore or indentation should be stamped in the upper surface of the closed top of each nozzle, near the periphery thereof, to facilitate its opening for the purpose of emptying the vessel. The opening is effected by running a sharp knife or other instrument, along the score, which, fwm the thinness of metal therein, will yield and separate very readily. v

The simple caps and nozzles thus struck up need only counterpart screw-threads thereon to make them complete; --These threads are cut on the one and the other in the usual manner, by placing them in a lathe, or they may be stamped, swaged, or crimped up therebn, or formed separately, and subsequently added. thereto, as described in. my United States Letters Patent of November I5, 1869. y

'Ihe complete screwthreaded sheet-iron nozzles and caps thus produced are superior to all others in use in their quality, durability, and finish, and can be furnished at far less cost.

I do not claim, broadly, forming a screw-cap out of a solid piece of sheetinetal, as this has been accomplished by spinning the same over a threaded chuck.

I claim as my invention- The within-described closed-top nozzles and'screwcaps for oil-cans and other vessels, formed substantially as herein set forth, as a new article of manufacture,

D. T. COVELL.

Witnesses: y

Geo. W. RAMBUS, S. O. WILSON.' 

